Siemens 6ES5 330-7AB11 is a SIMATIC S5-110A test module designed for testing and commissioning the S5-110A CPU within a standard mounting rack. This 330-series test module—also cataloged as 6ES5 330-7AB11, 6ES5 3307AB11, and 6ES5330-7AB11—weighs about 0.52 kg and is intended for use with a standard-length mounting rack such as the 6ES5 710-0SA11, which accommodates a power supply, CPU, and up to eight I/O modules. As part of the SIMATIC S5 family, the 6ES5 330-7AB11 is specifically designated for test and commissioning tasks rather than ongoing production control.
